The M45-50-BLDC-Pro series is a 45mm diameter brushless DC motor with a compact 50mm body length, specifically designed for applications requiring substantial torque output in a short-form-factor package. This motor platform delivers significantly higher power density than smaller 36mm and 40mm frames, making it an ideal choice for electric mobility, automated guided vehicles (AGVs), medical equipment, and industrial automation systems where space is limited but torque requirements are high.
The M45-50-BLDC-Pro delivers rated torque ranging from 0.80 to 2.00 Nm depending on the selected winding, with peak torque reaching up to 8.0 Nm for demanding load conditions. No-load speeds are available from 1,500 to 8,000 RPM, providing flexibility to optimize for either high-speed or high-torque applications. The motor achieves peak efficiency of 88%, significantly reducing energy consumption and heat generation compared to brushed alternatives—a critical advantage for battery-powered electric mobility platforms and thermally constrained industrial systems.
The brushless architecture eliminates the mechanical brushes found in conventional DC motors, removing the primary wear component and substantially extending operational life. With a rated lifetime of 15,000+ hours under typical operating conditions, this motor offers three to four times the service life of equivalent brushed motors. The absence of brush arcing also reduces electromagnetic interference (EMI), enabling reliable integration with sensitive electronic control systems. The motor’s low cogging torque design ensures smooth rotation at all speeds, delivering consistent performance for precision motion control applications.
Three integrated Hall-effect sensors provide commutation feedback to the electronic speed controller, enabling smooth startup, accurate speed regulation, and instantaneous direction changes. The Hall sensors ensure reliable starting under load conditions and stable performance across the entire operating speed range. For applications requiring closed-loop speed or position control, an optional magnetic or optical encoder with resolution up to 2,048 pulses per revolution (PPR) can be integrated on the rear shaft extension.
The compact 50mm body length provides adequate surface area for heat dissipation in most operating conditions, while optional ventilation slots can be added for enhanced cooling in continuous-duty applications. Double-shielded ball bearings at both motor ends ensure low rotational friction and long service life under radial and axial loads. The motor’s dynamic balancing process minimizes vibration, making it suitable for precision applications where operational stability is critical. For challenging environmental conditions, the motor can be supplied with IP54 (dust-protected and splash-resistant) or IP65 (dust-tight and wash-down capable) protection ratings. The standard insulation is Class F (155°C), with a Class H (180°C) upgrade available for high-temperature industrial environments.
The M45-50-BLDC-Pro series offers comprehensive customization options to support OEM integration. Customers can specify winding configurations to achieve target speed and torque characteristics, select shaft diameters of 10mm, 12mm, 14mm, or 15mm with associated lengths, and define shaft end geometries including flat, keyway, D-cut, or spline. Planetary or spur gearboxes with reduction ratios from 3:1 to 100:1 are available for applications requiring further torque multiplication. Additional options include encoder integration, electromagnetic holding brakes, custom lead wire lengths, and specialized connector terminations (Molex, JST, AMP, Deutsch, or custom designs). IP65-rated sealing and high-temperature insulation upgrades are also supported for volume orders.
Quality assurance is a cornerstone of the M45-50-BLDC-Pro series. Every motor undergoes 100% final testing to verify no-load speed, no-load current, Hall sensor functionality, insulation resistance, dielectric strength, and vibration characteristics. The production process is certified to ISO 9001:2015 quality management standards, and full RoHS and REACH compliance documentation is available for all materials and components. Engineering samples with matched electronic speed controllers are offered for application evaluation and system integration testing.
